Percutaneous Radiofrequency Ablation of Malignancies in the Lung
Damian E. Dupuy1,
Ronald J. Zagoria2,
Wallace Akerley1,
William W. Mayo-Smith1,
Peter V. Kavanagh2 and
Howard Safran3
1
Department of Diagnostic Imaging, Rhode Island Hospital, Brown University
School of Medicine, 593 Eddy St., Providence, RI 02903.
2
Department of Radiology, Wake Forest University School of Medicine, Medical
Center Blvd., Winston-Salem, NC 27157.
3
Department of Oncology, Rhode Island Hospital, Brown University School of
Medicine, Providence, RI 02903.

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Fig. 1. 45-year-old man with inoperable lung cancer who presented with
biopsy-proven local recurrence.
A, CT scan of chest shows recurrent neoplasm (arrow) in
radiation field after initial complete response with chemoradiation
therapy.
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Fig. 1. 45-year-old man with inoperable lung cancer who presented with
biopsy-proven local recurrence.
B, CT scan obtained during radiofrequency (RF) ablation shows
position of electrode in mass.
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Fig. 1. 45-year-old man with inoperable lung cancer who presented with
biopsy-proven local recurrence.
C, Supine CT scan obtained immediately after RF ablation and removal
of electrode shows increased parenchymal density and peripheral ground-glass
opacity around tumor corresponding to lesion induced by RF heat. Note absence
of pneumothorax.
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Fig. 1. 45-year-old man with inoperable lung cancer who presented with
biopsy-proven local recurrence.
D, CT scan obtained at same level as C 6 weeks after C
shows mass has become smaller and retracted toward hilum.
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